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drm/crtc_helper: avoid NULL-pointer dereference when encoder is NULL

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Signed-off-by: Maarten Maathuis <madman2003@gmail.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Maarten Maathuis 2009-09-01 03:39:04 +02:00 committed by Dave Airlie
parent 9c552dd793
commit ff6fdbed8f
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/drm_crtc_helper.c
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@ -842,7 +842,8 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
/* If the encoder is reused for another connector, then
* the appropriate crtc will be set later.
*/
connector->encoder->crtc = NULL;
if (connector->encoder)
connector->encoder->crtc = NULL;
connector->encoder = new_encoder;
}
}